Invention Grant
- Patent Title: Image projection apparatus with operation image generation based on distance to the projection surface, and method for controlling the same
- Patent Title (中): 基于与投影面的距离的操作图像生成的图像投影装置及其控制方法
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Application No.: US12784114Application Date: 2010-05-20
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Publication No.: US08220936B2Publication Date: 2012-07-17
- Inventor: Osamu Yonishi
- Applicant: Osamu Yonishi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2009-161237 20090707
- Main IPC: G03B21/26
- IPC: G03B21/26 ; G03B21/00
Abstract:
An image projection apparatus in which a measuring unit measures a distance from the image projection apparatus to a projection surface. A generating unit generates a first operation image if the measured distance is less than a threshold value and generates a second operation image if the measured distance is not less than the threshold value. The first operation image is an image by which an operation can be input by pointing on the first operation image that is being projected with a body part of a user. The second operation image is an image by which an operation can be input by operating a cursor displayed in the second operation image that is being projected using a predetermined operating unit. A projecting unit projects an operation image generated by the generating unit onto the projection surface.
Public/Granted literature
- US20110007227A1 IMAGE PROJECTION APPARATUS AND METHOD FOR CONTROLLING THE SAME Public/Granted day:2011-01-13
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